I don't have a definite answer. Maybe it'll come back when the storylines and art are ready for a new installment. Just stay tuned for any official announcements.
Taking back Manhwa Chapter 65 is unlikely to be possible. Usually, once a chapter is made available, it's there for viewing and can't be reversed. But you could explore if there are any special circumstances or options mentioned by the publisher or platform.
You could start by having an honest conversation with him and expressing your feelings. Maybe try to figure out what went wrong and work on changing those things.
It depends on the specific terms and conditions set by the source or platform where you accessed it. Sometimes, you might have the option to re-read it, but not necessarily take it back in a literal sense.